diff --git a/requirements.txt b/requirements.txt
index 3c50f11..f785e01 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -10,4 +10,4 @@ python-telegram-bot==12.1.1
 requests==2.22.0
 six==1.12.0
 tornado==6.0.3
-urllib3==1.25.3
+urllib3==1.26.5